There are 3 sets for guitar and 1 set just for bass, compatible with all Line 6 products that use the basic Gearbox software. Each Tone Set contains 128 categorized presets in folders.
Perimeter Sound are also having a holiday/end of year special on their Best Of The Perimeter Loop Sample Compilation DVD, with all 7 of their indepedent releases in Acid/PC or Garageband/Mac format for $100 plus $4.85 shipping worldwide, that's $20 off the normal price, and $75 off the individual CD prices.
Pricing and Availability:
Gearbox Tone Set introductory prices are - $15.00 each through the end of the year, and they are available for purchase now on the Perimeter website
More information and 16 free samples from each Tone Set: